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Ansari MGA, Mohammed AK, Wani KA, Hussain SD, Alnaami AM, Abdi S, Aljohani NJ, Al-Daghri NM. Vitamin D Receptor Gene Variants Susceptible to Osteoporosis in Arab Post-Menopausal Women. Curr Issues Mol Biol 2021; 43:1325-1334. [PMID: 34698098 PMCID: PMC8929051 DOI: 10.3390/cimb43030094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/26/2021] [Accepted: 09/26/2021] [Indexed: 12/03/2022] Open
Abstract
Post-menopausal osteoporosis (PMO) is a multifactorial bone disorder in elderly women. Various vitamin D receptor (VDR) gene variants have been studied and associated with osteoporosis in other populations, but not in a homogenous Arab ethnic group. Herein, the current study explores the association between VDR polymorphisms and susceptibility to osteoporosis in Saudi postmenopausal women. In total, 600 Saudi postmenopausal women (N = 300 osteoporosis; N = 300 control) were genotyped for VDR gene variants (rs7975232, rs1544410, rs731236) using TaqMan® SNP genotyping assays. Bone mineral density (BMD) for the lumbar spine and femur was assessed using dual-energy X-ray absorptiometry (DEXA). The heterozygous frequency distributions AC of rs7975232, CT of rs1544410, and AG of rs731236 were significantly higher in the osteoporosis group than controls (p < 0.05). Heterozygous AC of rs7975232 (1.6; 95% CI 1.1–2.3; p < 0.023), CT of rs1544410 (1.6; 95% CI 1.1–2.4; p < 0.022), and AG of rs731236 (1.6; 95% CI 1.1–2.4; p < 0.024) were significantly associated with increased risk of osteoporosis, independent of age and BMI. In conclusion, VDR gene variants rs7975232, rs1544410, rs731236 had a significant effect on BMD and were associated with osteoporosis risk in Saudi postmenopausal women.
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Affiliation(s)
- Mohammed. G. A. Ansari
- Chair for Biomarkers of Chronic Diseases, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.G.A.A.); (A.K.M.); (K.A.W.); (S.D.H.); (A.M.A.); (N.J.A.)
| | - Abdul Khader Mohammed
- Chair for Biomarkers of Chronic Diseases, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.G.A.A.); (A.K.M.); (K.A.W.); (S.D.H.); (A.M.A.); (N.J.A.)
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Kaiser A. Wani
- Chair for Biomarkers of Chronic Diseases, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.G.A.A.); (A.K.M.); (K.A.W.); (S.D.H.); (A.M.A.); (N.J.A.)
| | - Syed D. Hussain
- Chair for Biomarkers of Chronic Diseases, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.G.A.A.); (A.K.M.); (K.A.W.); (S.D.H.); (A.M.A.); (N.J.A.)
| | - Abdullah M. Alnaami
- Chair for Biomarkers of Chronic Diseases, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.G.A.A.); (A.K.M.); (K.A.W.); (S.D.H.); (A.M.A.); (N.J.A.)
| | - Saba Abdi
- Biochemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Naji J. Aljohani
- Chair for Biomarkers of Chronic Diseases, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.G.A.A.); (A.K.M.); (K.A.W.); (S.D.H.); (A.M.A.); (N.J.A.)
- Obesity, Endocrine, and Metabolic Center, King Fahad Medical City, Riyadh 59046, Saudi Arabia
| | - Nasser M. Al-Daghri
- Chair for Biomarkers of Chronic Diseases, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (M.G.A.A.); (A.K.M.); (K.A.W.); (S.D.H.); (A.M.A.); (N.J.A.)
- Correspondence: ; Tel.: +966-1-4675939
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Yadav U, Kumar P, Rai V. Vitamin D receptor (VDR) gene FokI, BsmI, ApaI, and TaqI polymorphisms and osteoporosis risk: a meta-analysis. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2020. [DOI: 10.1186/s43042-020-00057-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Abstract
Background
Osteoporosis is a disease of the bones in which the density of the bones decreases. The prevalence of this disease greatly varies in different populations of the world. Numerous studies have been investigated VDR gene polymorphisms as osteoporosis risk in different ethnic groups. In present meta-analysis, the aim is to find out the role of VDR gene polymorphisms (FokI, BsmI, ApaI, and TaqI) in osteoporosis risk.
Methods
Suitable case-control studies for present meta-analysis were retrieved from four electronic databases. Open Meta-Analyst program was used for statistical analyses.
Results
Studies investigated BsmI (65 studies; 6880 cases/8049 controls), ApaI (31 studies; 3763 cases/3934 controls), FokI (18 studies; 1895 cases/1722 controls), and TaqI (26 studies; 2458 cases/2895 controls) polymorphisms that were included in the present meta-analysis. A significant association was found between the dominant model of FokI (ORff + Ffvs.FF = 1.19, 95% CI = 1.04–1.36, p = 0.01, I2 = 39.36%) in the overall analysis and recessive model of the Caucasian population of TaqI polymorphism (ORTT + Ttvs.tt = 1.35, 95% CI = 1.11–1.63, p = 0.002, I2 = 50.07%) with osteoporosis. On the other hand, no such effect is found in any other genetic models and in any other gene polymorphisms of the overall analyses or sub-group analyses.
Conclusion
In conclusion, the authors found that the dominant model of FokI in the overall analysis and recessive model of TaqI in the Caucasian population are significantly associated with the development of osteoporosis.
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Zhang L, Yin X, Wang J, Xu D, Wang Y, Yang J, Tao Y, Zhang S, Feng X, Yan C. Associations between VDR Gene Polymorphisms and Osteoporosis Risk and Bone Mineral Density in Postmenopausal Women: A systematic review and Meta-Analysis. Sci Rep 2018; 8:981. [PMID: 29343720 PMCID: PMC5772668 DOI: 10.1038/s41598-017-18670-7] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 12/15/2017] [Indexed: 12/01/2022] Open
Abstract
Results on the relationships between vitamin D receptor (VDR) gene polymorphisms and postmenopausal osteoporosis (PMOP) susceptibility and bone mineral density (BMD) are conflicting. The aim of the study is to identify more eligible studies that calculated pooled OR and WMD with 95% CI to assess their associations. Overall, there were significant correlations between VDR ApaI, VDR FokI and PMOP susceptibility. Subgroup analysis showed that VDR ApaI polymorphism significantly decreased the osteoporosis risk in Caucasian postmenopausal women. In Asian populations, VDR BsmI and VDR FokI were associated with an increased risk of PMOP. As to the associations between VDR polymorphisms and BMD, Caucasian PMOP women carrying the ApaI aa genotype were at risk of high BMD in femoral neck, and low femoral neck BMD was observed in Caucasian PMOP women with FokI Ff genotype. PMOP women with the Cdx2 GA genotype had a lower lumbar spine BMD in overall and Caucasian populations compared with PMOP women with GG genotype. Different VDR gene polymorphisms have different impacts on PMOP risk and BMD.
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Affiliation(s)
- Liang Zhang
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Xin Yin
- Department of Orthopedics, First Affiliated Hospital of PLA General Hospital, Beijing, China
| | - Jingcheng Wang
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Daolinag Xu
- Department of Nephrology, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Yongxiang Wang
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Jiandong Yang
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Yuping Tao
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Shengfei Zhang
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Xinmin Feng
- Department of Orthopedics, Northern Jiangsu People's Hospital, Yangzhou, China.
| | - Caifeng Yan
- Department of Endocrinology, Northern Jiangsu People's Hospital, Yangzhou, China.
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Bsm1 Gene polymorphism of the vitamin D receptor in breast cancer patients: influence of obesity and relevant drugs. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s00580-016-2354-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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TaqI, FokI, and ApaI Polymorphisms in the Vitamin D Receptor in Behçet's Disease in Turkish Population. DISEASE MARKERS 2016; 2016:7475080. [PMID: 27688524 PMCID: PMC5023821 DOI: 10.1155/2016/7475080] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 08/04/2016] [Accepted: 08/09/2016] [Indexed: 11/17/2022]
Abstract
Objectives. In our study we aimed to determine VDR gene polymorphisms in patients with Behçet's disease (BD) and neuro-Behçet's disease (NBD) in Turkish population. Methods. PBL obtained from 37 patients with BD, 21 patients with NB, and 30 healthy controls were investigated. Genomic DNA was extracted from whole blood using the QIAamp Blood Kit. VDR ApaI (rs7975232), VDR FokI (rs2228570), and VDR TaqI (rs731236) genotyping was performed by real-time polymerase chain reaction with SimpleProbe melting-curve analysis. Results. The allelic and genotype distributions of FokI and TaqI polymorphisms were not different among Behçet's disease, neuro-Behçet's disease, and control subjects in Turkish population (p > 0.05). Only the frequency of ApaI A allele in control is higher than that in BD (60% versus 38.5%), and the p value is 0.014, but the power is not enough to conclude that ApaI A allele is protective in BD in our study. Taken together, we found no significant differences between the BD, NBD, and control groups regarding the distribution of ApaI, TaqI, and FokI genotype and alleles frequencies. Conclusions. Future studies with larger patients' numbers may show differences between VDR polymorphisms and Behçet's disease.
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Kim SW, Lee JM, Ha JH, Kang HH, Rhee CK, Kim JW, Moon HS, Baek KH, Lee SH. Association between vitamin D receptor polymorphisms and osteoporosis in patients with COPD. Int J Chron Obstruct Pulmon Dis 2015; 10:1809-17. [PMID: 26379431 PMCID: PMC4567171 DOI: 10.2147/copd.s91576] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Patients with COPD are at an increased risk of osteoporosis. Although many studies have addressed the relationship between the vitamin D receptor (VDR) polymorphisms and bone health, this relationship has not been fully investigated in patients with COPD. In this study, we investigated the association of VDR polymorphisms with bone mineral density (BMD) and other clinical parameters in patients with COPD. PATIENTS AND METHODS In total, 200 patients with COPD were included in this study. The VDR polymorphisms rs1544410 (A/G-BsmI), rs7975232 (A/C-ApaI), rs731236 (C/T-TaqI), and rs10735810 (C/T-FokI) were determined by Sanger sequencing using blood DNA samples. BMD of the lumbar vertebra and the femoral neck was measured by dual-energy X-ray absorptiometry. Other clinical parameters were also evaluated. Haplotype and multivariate analyses were also performed. RESULTS Sex, body mass index, steroid use, percentage of forced expiratory volume in 1 second (FEV1), alkaline phosphatase, and 25-hydroxyvitamin D significantly influenced the risk of osteoporosis. Patients with osteoporosis were more likely to carry the rs7975232 C allele compared to normal patients with BMD. Haplotypes GCT and GAT were related to osteoporosis. Patients without the haplotype GAT allele showed a significantly lower T-score at the femoral neck and an increased risk of osteoporosis (odds ratio [OR]= 2.78, 95% confidence interval [CI]= 1.20-6.48, P=0.018) compared with carriers in the dominant model. CONCLUSION Genetic variations in VDR are significantly associated with osteoporosis among patients with COPD. Further studies are required to confirm the role of the VDR polymorphisms in osteoporosis among patients with COPD.
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Affiliation(s)
- Sei Won Kim
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong Min Lee
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jick Hwan Ha
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyeon Hui Kang
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chin Kook Rhee
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jin Woo Kim
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hwa Sik Moon
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ki Hyun Baek
- Division of Endocrinology and Metabolism, Department of Internal Medicine, St Paul's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sang Haak Lee
- Division of Pulmonology, Critical Care and Sleep Medicine, The Catholic University of Korea, Seoul, Korea
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Sassi R, Sahli H, Souissi C, Sellami S, Ben Ammar El Gaaied A. Polymorphisms in VDR gene in Tunisian postmenopausal women are associated with osteopenia phenotype. Climacteric 2015; 18:624-30. [PMID: 25603555 DOI: 10.3109/13697137.2015.1007123] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Osteopenia is characterized by intermediate values of bone mineral density (BMD) as compared to normal and osteoporotic subjects. BMD, a surrogate phenotype for osteoporosis, is influenced in part by genetic factors. Among the genes associated with BMD, the vitamin D receptor (VDR) was the first gene studied as a potential candidate associated with BMD in adult and postmenopausal bone loss. However, results are controversial. METHODS To determine whether VDR polymorphisms ApaI and TaqI are associated with BMD, osteopenia, osteoporosis and low-impact fracture risk in North Africans, these genotypes were analyzed in 566 postmenopausal Tunisian women. RESULTS In postmenopausal Tunisian women, the GT ApaI genotype seems to be protective against osteoporosis development (p = 0.02; odds ratio = 0.54). Moreover, the presence of the combined GT/TT genotype of ApaI and TaqI polymorphisms is more frequent in normal BMD women than in osteoporotic women (p = 0.00; odds ratio = 0.41). Interestingly, the GG ApaI genotype is associated with osteopenia development (p = 0.02; odds ratio = 1.86) and also the TT TaqI polymorphism (p = 0.02; odds ratio = 1.53). The GG ApaI genotype is associated with a three times risk of vertebral fracture. CONCLUSIONS The ApaI polymorphism showed an association with osteopenia and low-impact vertebral fracture incidence but not with osteoporosis. The TaqI polymorphism is associated specifically with the osteopenia phenotype. The presence of the two polymorphisms increases the risk to develop osteopenia in postmenopausal Tunisian women. Osteopenia seems to be genetically determined. However, osteoporosis is the result of interaction between genetic and environmental factors.
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Affiliation(s)
- R Sassi
- Genetics, Immunology and Human Pathologies Laboratory, Faculty of Mathematical, Physical and Natural Sciences of Tunis, Tunis El Manar University , Tunisia
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Canto-Cetina T, Cetina Manzanilla JA, González Herrera L, Rojano-Mejía D, Coral-Vázquez RM, Coronel A, Canto P. VDR polymorphisms are associated with bone mineral density in post-menopausal Mayan-Mestizo women. Ann Hum Biol 2014; 42:470-5. [PMID: 25347090 DOI: 10.3109/03014460.2014.967295] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Osteoporosis is characterized by low bone mineral density (BMD), which is determined by an interaction of genetic, metabolic and environmental factors. AIM To analyse the association between two polymorphisms of VDR as well as their haplotypes with BMD in post-menopausal Maya-Mestizo women. SUBJECTS AND METHODS This study comprised 600 post-menopausal Maya-Mestizo women. A structured questionnaire for risk factors was applied and BMD was assessed at the lumbar spine (LS) and total hip (TH) by dual-energy X-ray absorptiometry. DNA was extracted from blood leukocytes. Two single-nucleotide polymorphisms of VDR (rs731236 and rs2228570) were studied using real-time PCR allelic discrimination for genotyping. Differences between the means of the BMDs according to the genotype were analysed with covariance. Haplotype analysis was conducted. RESULTS TT genotype of rs731236 of VDR had higher BMD at total hip and femoral neck (FN), and one haplotype formed by the two polymorphisms was associated with only TH-BMD variations. This difference was statistically significant after adjustment for confounders. The genotype of rs2228570 of VDR analysis showed no significant differences with BMD variations. CONCLUSION The results showed that the TT genotype of rs731236 of VDR and one haplotype formed by rs731236 and rs2228570 polymorphisms were associated with higher BMD at TH and FN.
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Affiliation(s)
- Thelma Canto-Cetina
- a Laboratorio de Biología de la Reproducción , Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi' , Mérida Yucatán , México
| | | | - Lizbeth González Herrera
- c Laboratorio de Genética , Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi' , Mérida Yucatán , México
| | - David Rojano-Mejía
- d Unidad de Medicina Física y Rehabilitación, Región Centro, UMAE Lomas Verdes, Instituto Mexicano del Seguro Social , México, D.F. , México
| | - Ramón Mauricio Coral-Vázquez
- e Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional , México, D.F. , Mexico .,f Subdirección de Enseñanza e Investigación, Centro Médico Nacional '20 de Noviembre', Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado , México, D.F. , México
| | - Agustín Coronel
- g División de Investigación Biomédica , Subdirección de Enseñanza e Investigación, Centro Médico Nacional '20 de Noviembre', Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado , México, D.F. , México , and
| | - Patricia Canto
- g División de Investigación Biomédica , Subdirección de Enseñanza e Investigación, Centro Médico Nacional '20 de Noviembre', Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado , México, D.F. , México , and.,h Unidad de Investigación en Obesidad, Facultad de Medicina, Universidad Nacional Autónoma de México , México, D.F. , México
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Wu CY, Yang M, Lin M, Li LP, Wen XZ. MTHFR C677T polymorphism was an ethnicity-dependent risk factor for cervical cancer development: evidence based on a meta-analysis. Arch Gynecol Obstet 2013; 288:595-605. [PMID: 23463325 DOI: 10.1007/s00404-013-2721-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 01/15/2013] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Many studies have studied the associations between 5, 10-methylene tetrahydrofolate reductase (MTHFR) polymorphisms and susceptibilities of cervical cancer and cervical intraepithelial neoplasia (CIN); however, the results were inconsistent. The aim of this study was to further assess the relationships by the method of meta-analysis. MATERIALS AND METHODS Two investigators independently searched the PubMed, Embase, Wang Fang (Chinese database) and CNKI (China National Knowledge Infrastructure), with latest update to July 1st, 2011. The pooled odds ratio (OR) and 95 % confidence interval (95 % CI) were used to assess the strength of the associations by using fixed- or random-effect model. RESULTS Ten case-control studies were included in this meta-analysis including a total of 1,803 cervical cancer or CIN cases and 2,363 controls. Pooled analyses showed that T allele of MTHFR C677T was significantly associated with increased CIN risk [OR (95 % CI): 1.28 (1.03-1.50) for CT vs. CC], especially for low-grade CIN risk. In addition, MTHFR C677T rather than A1298C polymorphism was associated with risk of cervical cancer. Stratifying analyses for ethnicity indicated that T allele of MTHFR C677T was associated with increased cervical cancer risk for Asian [OR (95 % CI): 1.56 (1.17-2.08) for TT vs. CC; 1.53 (1.19-1.96) for TT vs. C carriers] while decreased risk for Caucasian [OR (95 % CI): 0.63 (0.45-0.89) for TT vs. CC; 0.66 (0.56-0.79) for T carriers vs. CC]. CONCLUSION This meta-analysis suggested that there was no association between MTHFR A1298C polymorphism and cervical cancer risk. However, MTHFR C677T was an ethnicity-dependent risk factor for cervical cancer occurrence. In addition, T allele of C677T was significantly associated with risk of low grade of CIN incidence. Because of modest limitations of our study, well-designed studies with large sample size were needed to confirm our findings in the future.
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Affiliation(s)
- Cheng Yong Wu
- Department of Obstetrics and Gynecology, Meizhou People's Hospital, Meizhou, Gaungzhou, China
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Wang D, Liu R, Zhu H, Zhou D, Mei Q, Xu G. Vitamin D receptor Fok I polymorphism is associated with low bone mineral density in postmenopausal women: a meta-analysis focused on populations in Asian countries. Eur J Obstet Gynecol Reprod Biol 2013; 169:380-6. [PMID: 23648129 DOI: 10.1016/j.ejogrb.2013.03.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 03/16/2013] [Accepted: 03/31/2013] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To explore the associations between vitamin D receptor (VDR) gene polymorphisms (including Fok I, Bsm I and Apa I) and bone mineral density (BMD) in postmenopausal Asian women. STUDY DESIGN Databases of Medline, Embase and Wangfang were retrieved to identify eligible studies, with update to 1st February 2012. Standardized mean difference (SMD) and 95% confidence intervals were calculated by using fixed- or random-effect model. Best genetic comparison model was determined by using the Thakkinstian method. RESULTS A total of 14 studies with 3243 healthy postmenopausal Asian women were included in this meta-analysis. Overall, pooled analyses indicated that the f allele of VDR Fok I was significantly associated with decreased BMD in the lumbar spine (ff vs. FF: SMD (95% CI): -0.87 (-1.38, -0.35); P=0.001 for lumbar spine; -0.43 (-0.93, 0.06), P=0.086 for femoral neck). In contrast, we did not observe overall associations between VDR Bsm I and Apa I polymorphisms and BMD in either lumbar spine or femoral neck (Bsm I bb vs. BB: SMD (95% CI): 0.61 (-1.30, 2.53), P=0.531 for lumbar spine; Apa I aa vs. AA: SMD (95% CI): 0.66 (-0.16, 1.48), P=0.113 for lumbar spine). When subgroup analyses were conducted according to countries, Indians carrying the VDR Fok I ff genotype were at risk of low BMD at lumbar spine (ff vs. FF: SMD (95% CI): -0.57 (-0.85, -0.29), P<0.001). Sensitivity analyses indicated that no single study had substantial influence on all combined analyses. In addition, no publication bias was identified. CONCLUSIONS This meta-analysis indicated that VDR Fok I, rather than Bsm I and Apa I polymorphisms, is associated with bone mineral density in postmenopausal Asian women (especially for Indian women), and can probably be used with other genetic markers together to identify individuals at high risk of osteoporosis.
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Affiliation(s)
- Dewei Wang
- Weifang Medical University, Weifang, PR China
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Jia F, Sun RF, Li QH, Wang DX, Zhao F, Li JM, Pu Q, Zhang ZZ, Jin Y, Liu BL, Xiong Y. Vitamin D Receptor BsmI Polymorphism and Osteoporosis Risk: A Meta-Analysis from 26 Studies. Genet Test Mol Biomarkers 2013; 17:30-4. [PMID: 23134477 DOI: 10.1089/gtmb.2012.0267] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Fu Jia
- Department of Orthopedics, Kunming Medical University, National Clinical Key Specialty, Yanan Hospital, Kunming, People's Republic of China
| | - Rui-Fen Sun
- Central Laboratory, Yunnan University of Chinese Traditional Medicine, Kunming, People's Republic of China
| | - Qun-Hui Li
- Department of Orthopedics, Kunming Medical University, National Clinical Key Specialty, Yanan Hospital, Kunming, People's Republic of China
| | - Da-Xing Wang
- Department of Orthopedics, Kunming Medical University, National Clinical Key Specialty, Yanan Hospital, Kunming, People's Republic of China
| | - Feng Zhao
- Department of Orthopedics, Kunming Medical University, National Clinical Key Specialty, Yanan Hospital, Kunming, People's Republic of China
| | - Jun-Min Li
- Department of Orthopedics, Kunming Medical University, National Clinical Key Specialty, Yanan Hospital, Kunming, People's Republic of China
| | - Qi Pu
- Department of Orthopedics, Kunming Medical University, National Clinical Key Specialty, Yanan Hospital, Kunming, People's Republic of China
| | - Zhong-Zi Zhang
- Department of Orthopedics, Kunming Medical University, National Clinical Key Specialty, Yanan Hospital, Kunming, People's Republic of China
| | - Yan Jin
- Department of Orthopedics, Kunming Medical University, National Clinical Key Specialty, Yanan Hospital, Kunming, People's Republic of China
| | - Bai-Lian Liu
- Department of Orthopedics, Kunming Medical University, National Clinical Key Specialty, Yanan Hospital, Kunming, People's Republic of China
| | - Ying Xiong
- Department of Orthopedics, Kunming Medical University, National Clinical Key Specialty, Yanan Hospital, Kunming, People's Republic of China
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Abstract
This review aims to provide a snapshot of the actual state of knowledge on genetic variants of nuclear receptors (NR) involved in regulating important aspects of liver metabolism. It recapitulates recent evidence for the application of NR in genetic diagnosis of monogenic ("Mendelian") liver disease and their use in clinical diagnosis. Genetic analysis of multifactorial liver diseases such as viral hepatitis or fatty liver disease identifies key players in disease predisposition and progression. Evidence from these analyses points towards a role of NR polymorphisms in common diseases, linking regulatory networks to complex and variable phenotypes. The new insights into NR variants also offer perspectives and cautionary advice for their use as handles towards diagnosis and treatment.
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Affiliation(s)
- Roman Müllenbach
- Department of Medicine II, Saarland University Medical Center, 66421 Homburg, Germany
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Abstract
This review aims to provide a snapshot of the actual state of knowledge on genetic variants of nuclear receptors (NR) involved in regulating important aspects of liver metabolism. It recapitulates recent evidence for the application of NR in genetic diagnosis of monogenic (“Mendelian”) liver disease and their use in clinical diagnosis. Genetic analysis of multifactorial liver diseases such as viral hepatitis or fatty liver disease identifies key players in disease predisposition and progression. Evidence from these analyses points towards a role of NR polymorphisms in common diseases, linking regulatory networks to complex and variable phenotypes. The new insights into NR variants also offer perspectives and cautionary advice for their use as handles towards diagnosis and treatment.
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Yavuz DG, Yoldemir T, Ozaltun K, Erenus M. Estrogen receptor gene polymorphisms in a group of postmenopausal Turkish women: association with bone mineral density. Climacteric 2011; 15:368-73. [PMID: 22141363 DOI: 10.3109/13697137.2011.617851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To evaluate the frequency of the estrogen receptor (ER) gene PvuII and XbaI polymorphisms and their associations with bone mineral density (BMD) in a group of postmenopausal Turkish women. DESIGN A total of 125 healthy postmenopausal women and 125 premenopausal healthy young women as controls were included in the study. The PvuII and XbaI polymorphisms in the ER gene were studied by the polymerase chain reaction-restriction fragment length polymorphism method. The BMD of the lumbar vertebrae and femoral neck were measured by dual-energy X-ray absorptiometry. RESULTS The frequencies of the ERα PVuII genotypes PP, Pp and pp were 20%, 54.4% and 25.6% in premenopausal and 24.8%, 44.8% and 30.4% in postmenopausal women, respectively. The frequencies of the ER XbaI genotypes XX, Xx, xx were 16.8%, 48.8% and 34.4% in premenopausal and 16.8%, 48% and 35.2% in postmenopausal women, respectively. There was no difference in the frequencies of ER gene polymorphisms between premenopausal and postmenopausal women. BMD measurements were not different between ER PvuII and XbaI genotypes in premenopausal and postmenopausal women. CONCLUSIONS ER gene PvuII and XbaI polymorphisms have no major influence on bone mineral density in our group of postmenopausal women.
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Affiliation(s)
- D G Yavuz
- Department of Internal Medicine, Section of Endocrinology and Metabolism, Marmara University Hospital, Marmara University School of Medicine, Istanbul, Turkey
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